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Planet creating tools for Unreal or other?

I am looking for a tool that generates large scale planets and lets you edit them with brush (create water, mountains). Something like this for Unity Planetary Terrain | Terrain | Unity Asset Store
I dont need it for game. It does not have to have FPS quality, but it should have a reasonable detail from a bit zoomed out isometric view. If it would have option of creating foliage it would be perfect.
Is there something like that for Unreal or other options?